000 00278nam a2200121Ia 4500
008 220811s9999 xx 000 0 und d
245 _aINVENTI IMPACT ENERGY AND POWER
260 _c2020-2021
500 _a"2020, 2021"
500 _a"4,1,2"
500 _aDEC-JUN
942 _cBV
999 _c23610
_d23610